Description Igor Fedorenko 2007-07-28 02:41:06 EDT

Consider the following test aspect and class

package m;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
@Aspect("pertarget(execution( public void m.M.run() ))")
public class A {
	int i;
	@Around("execution( public void m.M.run() )")
	public void count() {
		System.out.println("tick " + (i++));
	}
}
package m;
public class M {
	public void run() {
	}
	public static void main(String[] args) {
		for (int i = 0; i < 3; i++) {
			new M().run();
		}
	}
}

I get error message below when I run these class/aspect with LTW. No error message with compile time weaving. The code appears to work as expected in both cases. Tested with aspectj 1.5.3 and the latest dev build 20070611184800. 

More information:
     [java] loader (instance of  sun/misc/Launcher$AppClassLoader): attempted  duplicate class definition for name: "m/A$ajcMightHaveAspect"
     [java] java.lang.LinkageError: loader (instance of  sun/misc/Launcher$AppClassLoader): attempted  duplicate class definition for name: "m/A$ajcMightHaveAspect"
     [java] 	at java.lang.ClassLoader.defineClass1(Native Method)
     [java] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
     [java] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
     [java] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     [java] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     [java] 	at java.lang.reflect.Method.invoke(Method.java:597)
     [java] 	at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.defineClass(ClassLoaderWeavingAdaptor.java:745)
     [java] 	at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.access$100(ClassLoaderWeavingAdaptor.java:58)
     [java] 	at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor$1.acceptClass(ClassLoaderWeavingAdaptor.java:129)
     [java] 	at org.aspectj.weaver.tools.WeavingAdaptor$WeavingClassFileProvider$1.acceptResult(WeavingAdaptor.java:702)
     [java] 	at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1058)
     [java] 	at org.aspectj.weaver.tools.WeavingAdaptor.getAtAspectJAspectBytes(WeavingAdaptor.java:368)
     [java] 	at org.aspectj.weaver.tools.WeavingAdaptor.weaveClass(WeavingAdaptor.java:264)
     [java] 	at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:78)
     [java] 	at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:52)
     [java] 	at sun.instrument.TransformerManager.transform(TransformerManager.java:169)
     [java] 	at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:365)
     [java] 	at java.lang.ClassLoader.defineClass1(Native Method)
     [java] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
     [java] 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
     [java] 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
     [java] 	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
     [java] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
     [java] 	at java.security.AccessController.doPrivileged(Native Method)
     [java] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
     [java] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
     [java] 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
     [java] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     [java] 	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     [java] 	at m.M.run(M.java)
     [java] 	at m.M.main(M.java:11)